'use strict';

function find_first_even(collection) {
  for(let item of collection){
    if(item%2 === 0){
     console.log(item);
      return item;
    }
  }
  //在这里写入代码
}
find_first_even([1,11,27,20,4,9,15]);
module.exports = find_first_even;


